//
//  WangYuYang.h
//  类和对象
//
//  Created by apple on 15/8/8.
//  Copyright (c) 2015年 戴维营. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface WangYuYang : NSObject

{

    NSString * _artress;

}

- (void)setArtress:(NSString *)artress;
- (instancetype)artress;
- (void)sing;

@end

